add createMockAndAddToDefault
add correct handling of defaultMocks
[maven-release-plugin] prepare release celements-shared-tests-1.6
update version to 1.7-SNAPSHOT
Merge branch 'dev' into unstable-xwiki4

Conflicts:
	pom.xml
	src/main/java/com/celements/common/test/AbstractBridgedComponentTestCase.java
	src/test/java/com/celements/common/test/AbstractBridgedComponentTestCaseTest.java